Project Overview
This homeowner already had solar panels but was still paying about $550 a month for electricity. A significant amount of the solar power generated during the day was being exported to the grid. The customer wanted to keep more of that energy for their own use instead of continuing with high electricity bills.
Sydney Solar & Roofing completed a 40kWh GoodWe battery upgrade with a new 10kW inverter. The team removed the old inverter and connected the new equipment to the existing solar panels. The upgrade added storage to a solar system the homeowner already owned.
What the client needed
- Keep more of the surplus solar power they had been exporting.
- Have stored electricity available for use in the evening.
- Replace the old inverter while retaining the existing panels.
- Take advantage of up to three hours of free grid energy and the available battery incentives.
Our objectives
The job was to add battery storage to the existing solar system and replace its older inverter. The homeowner did not need a new set of panels. They needed an upgrade that would give them greater control over what happened to the energy their panels generated.
Provided Solutions
Installing a New 10kW Inverter
Our team removed the old inverter and installed a new 10kW inverter. We connected the replacement equipment to the existing panels and incorporated the GoodWe battery into the upgraded system.
40kWh GoodWe Battery Upgrade
We installed a 40kWh GoodWe battery system to store excess daytime generation. Instead of sending so much unused electricity to the grid, the homeowner can keep more of it for household use after solar production drops. This was the main improvement the customer wanted from the upgrade.
The new storage works with the existing panels and replacement inverter. The household could now use solar power directly when it was generated, then draw on stored energy later in the evening. The battery added flexibility without requiring any additional panels.
Up to Three Hours of Free Grid Energy
The homeowner can also use up to three hours of free grid energy to charge the battery. This offers another charging opportunity alongside daytime solar generation.
Battery Rebates and Promotion
The customer received $6,314 in new battery rebates on top of Sydney Solar & Roofing’s battery promotion. These incentives helped with the upfront cost of the installation.
For information about battery discounts and eligibility, see the Australian Government’s Cheaper Home Batteries Program.
Final Outcome
The completed upgrade addressed the homeowner’s main concern. Excess daytime solar could be held in the battery for evening use, with free grid energy available as a secondary charging source. The household gained more control over when it uses electricity.
Products used
- 40kWh GoodWe battery storage system.
- New 10kW inverter.
- Existing solar panels, retained and integrated.
Product Key Metrics
- Battery storage: 40kWh.
- New inverter capacity: 10kW.
- Previous electricity bill: Approximately $550 per month.
- Battery rebates received: $6,314.
- Free grid energy: Up to three hours for battery charging.
Want to Get More from Your Existing Solar?
If you already have solar panels but still face high electricity bills, a 40kWh GoodWe battery upgrade may be worth discussing. Sydney Solar & Roofing can review your current setup and recommend suitable battery storage and inverter options. Call 1300 007 727 or book a free consultation.